CN211867789U - Auxiliary device for drawing circle with fixed center - Google Patents
Auxiliary device for drawing circle with fixed center Download PDFInfo
- Publication number
- CN211867789U CN211867789U CN202020282701.XU CN202020282701U CN211867789U CN 211867789 U CN211867789 U CN 211867789U CN 202020282701 U CN202020282701 U CN 202020282701U CN 211867789 U CN211867789 U CN 211867789U
- Authority
- CN
- China
- Prior art keywords
- cylinder
- circle
- auxiliary device
- piston
- gas channel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000006835 compression Effects 0.000 claims description 7
- 238000007906 compression Methods 0.000 claims description 7
- 238000012545 processing Methods 0.000 description 10
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000013461 design Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Landscapes
- A Measuring Device Byusing Mechanical Method (AREA)
Abstract
The utility model discloses a decide auxiliary device that centre of a circle was drawn a circle, including the cylinder base, be provided with annular gas channel in the cylinder base, be provided with on the cylinder base with the communicating main air inlet of annular gas channel, the three cylinder of the radial equipartition of lateral wall of cylinder base, the intake pipe of every cylinder with annular gas channel intercommunication. The utility model discloses technical scheme decides auxiliary device that the centre of a circle was drawn a circle, for prior art, need not tedious, complicated operation, have round hole centre of a circle location accuracy, fix a position quick advantage.
Description
Technical Field
The utility model relates to a drawing auxiliary fixtures field, concretely relates to decide auxiliary device of centre of a circle cyclograph.
Background
In life, some practical problems that one round hole is taken as a reference standard to carry out secondary processing are often encountered. For example, when the diameter of a well is enlarged, the center of the well mouth needs to be found first, and then the circle after enlargement is drawn by compasses to determine a processing sideline. For another example, a workpiece with a hole and a large size is reamed, and because the size of the workpiece is large, large advanced equipment such as a three-coordinate instrument cannot be used or is not available, at the moment, the circle center of the round hole still needs to be found manually, and a processing sideline circle is drawn. In all the above cases, the circle center of the circular hole is not in the entity, so that the compass cannot be used for drawing the processing sideline circle, and the determination of the processing sideline circle by adopting other methods usually requires complicated and complicated calculation, takes a long time, and has low drawing precision.
Therefore, how to design an auxiliary device for centering and drawing a circle is a technical problem that needs to be solved by those skilled in the art.
Disclosure of Invention
For solving the technical problem, the main object of the utility model is to provide a circle-center-fixed circle drawing auxiliary device, can be fast, pinpoint the centre of a circle of round hole, supplementary follow-up circle drawing.
In order to achieve the above purpose, the present invention adopts the following technical solution.
The utility model provides a decide auxiliary device that centre of a circle was drawn a circle, includes the cylinder base, be provided with annular gas channel in the cylinder base, be provided with on the cylinder base with the communicating main air inlet of annular gas channel, the radial three cylinder of equipartition of lateral wall of cylinder base, the intake pipe of every cylinder with annular gas channel intercommunication.
Furthermore, the cylinder is a single-rod type piston cylinder, the single-rod type piston cylinder comprises a cylinder barrel and a cylinder cover, the bottom of the cylinder barrel is connected with the outer side wall of the cylindrical base, the bottom of the cylinder barrel is communicated with the annular gas channel, a piston is arranged in the cylinder barrel, a piston rod is connected to the piston, and the piston rod penetrates out of the cylinder cover.
Furthermore, a compression spring is sleeved on the piston rod between the piston and the cylinder cover.
Furthermore, the top of piston rod can be dismantled and be connected with the measuring head, the top of measuring head is the taper shape, and the bottom and the piston rod top of measuring head can be dismantled and be connected.
Furthermore, the top of piston rod is provided with the screw, the bottom of measuring head be provided with the screw that the screw matches.
Further, the measuring head has a plurality of length specifications.
Furthermore, the upper bottom and the lower bottom of the cylindrical base are respectively provided with a cross mark, the cross mark comprises a transverse line and a vertical line which are perpendicular to each other, the transverse line and the vertical line are provided with a graduated scale, and the zero point of the graduated scale is located at the intersection of the transverse line and the vertical line.
The utility model discloses technical scheme decides auxiliary device that the centre of a circle was drawn a circle, for prior art, need not tedious, complicated operation, have round hole centre of a circle location accuracy, fix a position quick advantage.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.
FIG. 1 is a workpiece requiring reaming;
FIG. 2 is a perspective view of an embodiment of the auxiliary device for centering a circle according to the present invention;
FIG. 3 is a cross-sectional view of the auxiliary device of FIG. 2 centered on a circle at a horizontal center plane;
FIG. 4 is a schematic view of the connection of the piston rod with the measuring head;
figure 5 is a schematic view of the centering circle aid being placed into a workpiece to be reamed.
In the above figures:
1, a cylindrical base; 101 an annular gas channel; 102 an air inlet; 103, marking by a cross;
2, a cylinder; 201 a cylinder barrel; 202, a cylinder cover; 203 a piston; 204 a piston rod; 205 compression spring; 206 a measuring head; 207 a screw hole; a 208 screw;
3, workpiece; 301 to be reamed.
Detailed Description
In order to make the above objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.
In the following description, specific details are set forth in order to provide a thorough understanding of the present invention. The invention can be implemented in a number of other ways than those described herein, and those skilled in the art will be able to make similar generalizations without departing from the spirit of the invention. The invention is therefore not limited to the specific embodiments disclosed below.
In life, some practical problems that one round hole is taken as a reference standard to carry out secondary processing are often encountered. For example, when the diameter of a well is enlarged, the center of the well mouth needs to be found first, and then the circle after enlargement is drawn by compasses to determine a processing sideline. For another example, a workpiece with a hole and a large size is reamed, and because the size of the workpiece is large, large advanced equipment such as a three-coordinate instrument cannot be used or is not available, at the moment, the circle center of the round hole still needs to be found manually, and a processing sideline circle is drawn. In all the above cases, the circle center of the circular hole is not in the entity, so that the compass cannot be used for drawing the processing sideline circle, and the determination of the processing sideline circle by adopting other methods usually requires complex and tedious calculation, takes a long time, and has low drawing precision.
Referring to fig. 2 and 3, the utility model provides a decide auxiliary device that centre of a circle was drawn, including cylinder base 1, be provided with annular gas channel 101 in the cylinder base 1, be provided with on the cylinder base 1 with the communicating main air inlet 102 of annular gas channel 101, the three cylinder 2 of the radial equipartition of lateral wall of cylinder base 1, the intake pipe of every cylinder 2 with annular gas channel 101 communicates.
In the above embodiment, the annular gas channel 101 is arranged inside the cylindrical base 1, the three cylinders 2 are uniformly arranged on the outer side wall of the cylindrical base 1, and the gas inlet pipe of each cylinder 2 is communicated with the annular gas channel 101. When the device is used, the device is firstly placed in a hole to be machined of a workpiece 3, compressed air is introduced into the air inlet 102, the compressed air enters each air cylinder 2 through the annular air channel 101, the three air cylinders 2 are located in the same closed environment, therefore, the pressure in the three air cylinders 2 is equal, the piston rods 204 of the three air cylinders 2 extend out and prop against the inner wall of the hole to be reamed 301, and the extending lengths of the three piston rods 204 are equal, so that the upper surface and the lower surface of the cylindrical base 1 form a platform, the circle center of the hole to be reamed 301 can be found on the platform, and the drawing of concentric circles is facilitated.
Preferably, the cylinder 2 is a single-rod type piston cylinder, the single-rod type piston cylinder comprises a cylinder barrel 201 and a cylinder cover 202, the bottom of the cylinder barrel 201 is connected with the outer side wall of the cylindrical base 1, the bottom of the cylinder barrel 201 is communicated with the annular gas channel 101, a piston 203 is arranged in the cylinder barrel 201, the piston 203 is connected with a piston rod 204, and the piston rod 204 penetrates out of the cylinder cover 202.
The single-rod piston cylinder is preferred in the above embodiment, the structure is simple, and the reaction is rapid.
Further, a compression spring 205 is sleeved on the piston rod 204 between the piston 203 and the cylinder head 202.
In the above embodiment, the compression spring 205 is sleeved on the piston rod 204 between the piston 203 and the cylinder head 202, so that the piston rod 204 can be ensured to be in good contact with the inner wall with the counterbore, and after drawing is finished, compressed air is released, and the piston rod 204 is retracted under the restoring force of the compression spring 205, so that the drawing is convenient to store.
Further, referring to fig. 4, the top end of the piston rod 204 is detachably connected to a measuring head 206, the top end of the measuring head 206 is conical, and the bottom end of the measuring head 206 is detachably connected to the top end of the piston rod 204. Preferably, the top end of the piston rod 204 is provided with a screw hole 207, and the bottom end of the measuring head 206 is provided with a screw 208 matching with the screw hole 207. The measuring head 206 has a variety of length specifications.
In the above embodiment, the tip of the measuring head 206 is designed to be conical, so that the measuring head 206 can be in point contact with the hole 301 to be reamed as much as possible, and the measurement is more accurate. The measuring head 206 has various length specifications and is detachably connected, so that the auxiliary device for centering and drawing a circle has a wider application range, and when the hole needs to be enlarged, the measuring head 206 with longer length is selected, and when the hole needs to be enlarged, the measuring head 206 with shorter length is selected. The measuring head 206 and the piston rod 204 are connected in a screw rod 208 and screw hole 207 mode, so that the measuring head is stable and reliable and is convenient to disassemble.
Further, the upper bottom and the lower bottom of the cylindrical base 1 are respectively provided with a cross mark 103, the cross mark 103 comprises a transverse line and a vertical line which are perpendicular to each other, a graduated scale is arranged on the transverse line and the vertical line, and a zero point of the graduated scale is located at an intersection point of the transverse line and the vertical line.
In the above embodiment, the cross marks 103 with scales are arranged on the upper surface and the lower surface of the cylindrical base 1, so that the visual observation in positioning is facilitated, and the moving distance of the tool is determined.
By way of example, with reference to fig. 1, which shows a workpiece 3 with a hole 301 to be reamed, the following steps are performed using a centering and circle-drawing auxiliary device:
step one, horizontally placing a workpiece 3 to enable a hole 301 to be reamed to be vertical;
step two, referring to fig. 5, horizontally placing the auxiliary device for centering and drawing a circle into a hole to be reamed of the workpiece, wherein the height of the bottom of the auxiliary device can be adjusted by adopting a cushion block, so that the upper surface of the cylindrical base 1 is flush with the upper surface of the workpiece 3;
connecting a compressed air pipe to an air inlet 102 of the auxiliary device for centering the circle and drawing a circle, and adjusting a pressure gauge of compressed air, wherein the pressure gauge is preferably 0.4 MPa;
opening a valve of the compressed air pipe, and extending three piston rods 204 of the auxiliary device for centering the circle and drawing the circle to be supported on the inner wall to be reamed;
aligning a fixing pin of the compasses to the center of the cross mark on the cylindrical base, and drawing a circle to be reamed and required to be reamed;
and step six, closing and opening the valve of the compressed air pipe, retracting the three piston rods 204 under the restoring force of the compression spring 205, and taking out the auxiliary device for centering the circle and drawing the circle.
Although the invention has been described in detail in this specification with reference to specific embodiments and illustrative embodiments, it will be apparent to those skilled in the art that certain changes and modifications can be made therein without departing from the scope of the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (7)
1. The utility model provides a decide auxiliary device of centre of a circle drawing, its characterized in that, includes cylinder base (1), be provided with annular gas channel (101) in cylinder base (1), be provided with on cylinder base (1) with communicating main air inlet (102) of annular gas channel (101), the radial three cylinder (2) of equipartition of lateral wall of cylinder base (1), the intake pipe of every cylinder (2) with annular gas channel (101) intercommunication.
2. The auxiliary device for centering and drawing a circle according to claim 1, wherein the cylinder (2) is a single-rod piston cylinder, the single-rod piston cylinder comprises a cylinder barrel (201) and a cylinder cover (202), the bottom of the cylinder barrel (201) is connected with the outer side wall of the cylindrical base (1), the bottom of the cylinder barrel (201) is communicated with the annular gas channel (101), a piston (203) is arranged in the cylinder barrel (201), the piston (203) is connected with a piston rod (204), and the piston rod (204) penetrates out of the cylinder cover (202).
3. Auxiliary device for centering circles according to claim 2, characterized in that a compression spring (205) is sleeved on the piston rod (204) between the piston (203) and the cylinder head (202).
4. The auxiliary device for centering a circle according to claim 2, wherein the top end of the piston rod (204) is detachably connected with the measuring head (206), the top end of the measuring head (206) is conical, and the bottom end of the measuring head (206) is detachably connected with the top end of the piston rod (204).
5. The auxiliary device for centering a circle according to claim 4, wherein the top end of the piston rod (204) is provided with a screw hole (207), and the bottom end of the measuring head (206) is provided with a screw rod (208) matched with the screw hole (207).
6. The apparatus as claimed in claim 4, wherein the measuring head (206) has a plurality of length specifications.
7. The auxiliary device for circle centering and circle drawing according to claim 1, wherein cross marks (103) are respectively arranged on the upper bottom and the lower bottom of the cylindrical base (1), the cross marks (103) comprise transverse lines and vertical lines which are perpendicular to each other, a graduated scale is arranged on the transverse lines and the vertical lines, and the zero point of the graduated scale is located at the intersection point of the transverse lines and the vertical lines.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020282701.XU CN211867789U (en) | 2020-03-10 | 2020-03-10 | Auxiliary device for drawing circle with fixed center |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020282701.XU CN211867789U (en) | 2020-03-10 | 2020-03-10 | Auxiliary device for drawing circle with fixed center |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211867789U true CN211867789U (en) | 2020-11-06 |
Family
ID=73254972
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020282701.XU Expired - Fee Related CN211867789U (en) | 2020-03-10 | 2020-03-10 | Auxiliary device for drawing circle with fixed center |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211867789U (en) |
-
2020
- 2020-03-10 CN CN202020282701.XU patent/CN211867789U/en not_active Expired - Fee Related
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN212527727U (en) | Device for perforating and marking on cylinder, cone and end enclosure of pressure vessel | |
| CN205537480U (en) | Plane degree short -term test equipment is followed to closed shell mouth | |
| CN208751465U (en) | A kind of taper hole dimension measuring device | |
| CN204027548U (en) | A kind of device of Measurement accuracy Axle Surface roughness | |
| CN211867789U (en) | Auxiliary device for drawing circle with fixed center | |
| CN211317140U (en) | Deep hole step height measuring device | |
| CN107084685B (en) | Inner hole cylindricity detection device and detection method thereof | |
| CN102494600B (en) | Multidimension measuring apparatus of high speed processing handle | |
| CN106969693A (en) | A kind of expansion filling body test block expansion rate determines device | |
| CN216620964U (en) | Floating taper hole depth measurement examines utensil | |
| CN216205927U (en) | Depth measuring device for inner concave hole | |
| CN111947534B (en) | Device and method for detecting position degree and aperture of spatial different-surface hole | |
| CN210981133U (en) | Battery protective beam testing fixture | |
| CN211012757U (en) | Measuring tool for distance from center to edge of hole | |
| CN114485595A (en) | Method for accurately positioning strain measuring point of marked bridge static load test and marking device | |
| CN211012903U (en) | Measuring device for cylindricity of large-aperture cylinder hole | |
| CN210268661U (en) | Total powerstation prism centering rod quick travel device | |
| CN208254442U (en) | A kind of thin wall special-shaped tube wave peak flat segments wall thickness measuring positioning device | |
| CN216707485U (en) | Pipe marking device based on end face positioning | |
| CN219121258U (en) | Angle valve body flange distance measuring device | |
| CN219788139U (en) | Movable test device for detecting parts in batches | |
| CN219244504U (en) | Universal measuring tool for measuring inner diameter and outer diameter of sleeve parts | |
| CN114111492B (en) | Hole series sine gauge | |
| CN110145998B (en) | Inner cone oblique angle detection device | |
| CN213337590U (en) | Portable boiler water quality temporary detection device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20201106 |